Black Knapweed

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Plant Bio

Common Name:Black Knapweed
Family:Asteraceae
Genus:Centaurea
Species:nigra
Classification/Rank:Extremely Invasive
Method of Transportation:
Habitat/Range:

Description

• perennial herb that grows 0.1-0.8m tall • stems are erect, branched, and rough hairy • leaves are toothed, or shallowly lobed to entire, and are hairy above and below; lower leaves are long stalked and become unstalked with increasing plant height • flowers are disk shaped, purple, and found solitarily at the end of upper branches

News

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posted: October 22, 2018
Upcoming Forum on Vegetation Management - Nov 6-8

This will be of interest to those writing pest management plans or who work in the vegetation management field. Check out IVMA's website...

posted: October 6, 2018
AGM coming up - October 30 in Smithers!

2018 AGM and General Members' Meeting - Everyone Welcome!

DATE: Tuesday, October 30, 2018, 10:00 am to 2:00 pm.
PLACE: Royal Canadian...